Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 40
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 40 · DAL → SAN
departs 5:50 PM CT · arrives 6:45 PM PT
Forecast issued Fri 2:00 PM ET · 5h before departure
Watch this flight
Other days
Today
Mon 10/5 29%
Thu 10/8 36%
Odds over time
Arrive at SAN more than 15 minutes late?
61%
chance · ±0 pts
+4 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
61%
Leave 15+ late
57%
Arrive 1h+ late
25%
Cancelled
5%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
3.9d
2d
1d
12h
Now
Departs
Lands
Arrive at SAN more than 15 minutes late?
Calm-weather odds: 46% · changed +4 pts in 24h
+4 pts
61%
Yes 61%
No 39%
Leave DAL more than 15 minutes late?
Calm-weather odds: 52% · changed −10 pts in 24h
−10 pts
57%
Yes 57%
No 43%
Arrive at SAN more than an hour late?
Calm-weather odds: 9% · changed +12 pts in 24h
+12 pts
25%
Yes 25%
No 75%
Cancelled?
Calm-weather odds: <1% · changed +4 pts in 24h
+4 pts
5%
Yes 5%
No 95%
How late will it get to SAN?
On time or early
38%
15–30 min late
11%
30 min–1 hour late
22%
1–2 hours late
19%
Over 2 hours late
5%
Cancelled
5%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 600 ft, visibility down to 2.5 mi, 0.6 in of rain forecast at DAL that day
↑
Later flights pick up delays from earlier in the day
↑
DAL is prone to delays
↓
DAL is quiet at that time
↓
Cloud base down to 300 ft, visibility down to 2.5 mi forecast at SAN that day
Weather at each end
DAL (origin)
Gusts 11 kt Ceiling 600 ft Visibility 2.5 mi Precip 0.61 in
SAN (destination)
Gusts 13 kt Ceiling 300 ft Visibility 2.5 mi Precip none
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.